Chem R110 - Elementary Chemistry » Spring 2021 » Quiz 4

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Question #1
Which of the following statements about the nature of electrical charge is FALSE?
A.   All of these statements are true.
B.   Positive and negative electrical charges attract each other.
C.   Positive and negative charges cancel each other so that a proton and electron, when paired, are charge neutral.
D.   Positive-positive or negative-negative charges repel each other.
E.   Electrical charge is a fundamental property of protons and electrons.
Question #2
What is the relative electrical charge of a proton?
A.   + 1
B.   -2
C.   -1
D.   0
Question #3
Which subatomic particle is not found in the nucleus of the atom?
A.   electron
B.   neutron
C.   proton
Question #4
The element with atomic number 27 is ___.
A.   copper
B.   calcium
C.   cobalt
D.   carbon
Question #5
An isotope has 13 protons, 14 neutrons, and 13 electrons. Which of the following is the isotope?
A.   Al-13
B.   Al-14
C.   Al-40
D.   Al-27
Question #6
Ions can be formed from atoms by losing or gaining electrons. Select the alternative that states the correct number of protons, neutrons, and electrons in .
A.   18 protons, 17 neutrons, 19 electrons
B.   17 protons, 36 neutrons, 17 electrons
C.   17 protons, 18 neutrons, 16 electrons
D.   17 protons, 18 neutrons, 18 electrons

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